本篇内容主要讲解“vue实现锚点定位的代码怎么写”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“vue实现锚点定位的代码怎么写”吧!
具体代码如下：
vue
<el-row :gutter="20"> <el-col :span="3"> <!--导航选择事件--> <el-menu :default-active="activeStep" @select="jump"> <el-menu-item v-for="(item,index) in menuData" :index="`${index}`" :key="item.subjectId"> <i class="el-icon-menu"></i> <span slot="title">{{item.subjectName}}</span> </el-menu-item> </el-menu> </el-col> <!--绑定scroll事件需要监听--> <el-col :span="21" class="scroll_cls" @scroll="onScroll"> <div v-for="(item,index) in tableObject" :key="index" > <div class="title scroll-item" :id="item.name">{{item.name}}</div> <el-table :data="item.rows" :key="index"> <el-table-column label="序号" type="index" width="50"></el-table-column> <el-table-column prop="channelId" label="渠道/团队id"></el-table-column> <el-table-column prop="channelName" label="渠道/团队"></el-table-column> <el-table-column prop="ruleCode" label="分配方案id"></el-table-column> <el-table-column prop="ruleName" label="分配方案名称"></el-table-column> <el-table-column prop="ruleVersion" label="版本号"></el-table-column> <el-table-column prop="hierarchy" label="级别"> <template slot-scope="scope"> <span>{{scope.row.hierarchy == 1 ? '项目' : '渠道团队'}}</span> </template> </el-table-column> <el-table-column label="有效期"> <template slot-scope="scope"> <span>{{scope.row.beginTime + '-' + scope.row.endTime}}</span> </template> </el-table-column> <el-table-column prop="creatorName" label="操作人"></el-table-column> <el-table-column prop="createTime" label="操作时间"></el-table-column> <el-table-column prop="orderCnt" label="关联订单"> <template slot-scope="scope"> <el-button @click="orderHandleClick(scope.row.orderCnt)" type="text" size="small" >{{scope.row.orderCnt}}</el-button> </template> </el-table-column> <el-table-column label="操作"> <template slot-scope="scope"> <el-button @click="settingHandleClick(scope.row)" type="text" size="small">设置分配方案</el-button> </template> </el-table-column> </el-table> <el-pagination v-if="item.total > 5" size="small" @size-change="handleSizeChange($event,index)" @current-change="handleCurrentChange($event,index)" :current-page="ruleForm.ageNum" :page-sizes="[10, 30, 50, 100]" :page-size="ruleForm.pageSize" layout="total, sizes, prev, pager, next" :total="item.total" ></el-pagination> </div> </el-col></el-row>js
// 滚动触发按钮高亮methods: { onScroll(e) { let scrollItems = document.querySelectorAll(".scroll-item"); console.log(scrollItems) console.log(e) for (let i = scrollItems.length - 1; i >= 0; i--) { // 判断滚动条滚动距离是否大于当前滚动项可滚动距离 let judge = e.target.scrollTop >= scrollItems[i].offsetTop - scrollItems[0].offsetTop; if (judge) { console.log(i) this.activeStep = i.toString(); break; } } }, jump(index) { console.log(index) let target = document.querySelector(".scroll_cls"); let scrollItems = document.querySelectorAll(".scroll-item"); // 判断滚动条是否滚动到底部 if (target.scrollHeight <= target.scrollTop + target.clientHeight) { console.log(index) console.log(typeof index) this.activeStep = index; } let total = scrollItems[index].offsetTop - scrollItems[0].offsetTop; // 锚点元素距离其offsetParent(这里是body)顶部的距离(待滚动的距离) console.log(total) let distance = document.querySelector(".scroll_cls").scrollTop; // 滚动条距离滚动区域顶部的距离 console.log(distance) // let distance = document.body.scrollTop || document.documentElement.scrollTop || window.pageYOffset // 滚动条距离滚动区域顶部的距离(滚动区域为窗口) // 滚动动画实现, 使用setTimeout的递归实现平滑滚动，将距离细分为50小段，10ms滚动一次 // 计算每一小段的距离 let step = total / 50; if (total > distance) { smoothDown(document.querySelector(".scroll_cls")); } else { let newTotal = distance - total; step = newTotal / 50; smoothUp(document.querySelector(".scroll_cls")); } // 参数element为滚动区域 function smoothDown(element) { if (distance < total) { distance += step; element.scrollTop = distance; setTimeout(smoothDown.bind(this, element), 10); } else { element.scrollTop = total; } } // 参数element为滚动区域 function smoothUp(element) { if (distance > total) { distance -= step; element.scrollTop = distance; setTimeout(smoothUp.bind(this, element), 10); } else { element.scrollTop = total; } } document.querySelectorAll('.scroll-item').forEach((item, index1) => { if (index === index1) { item.scrollIntoView({ block: 'start', behavior: 'smooth' }) } }) }, }, mounted() { this.$nextTick(() => { console.log(1) window.addEventListener('scroll', this.onScroll,true) }) },css
.scroll_cls { height: 500px; overflow: auto;}Vue的优点
Vue具体轻量级框架、简单易学、双向数据绑定、组件化、数据和结构的分离、虚拟DOM、运行速度快等优势，Vue中页面使用的是局部刷新，不用每次跳转页面都要请求所有数据和dom，可以大大提升访问速度和用户体验。
到此，相信大家对“vue实现锚点定位的代码怎么写”有了更深的了解，不妨来实际操作一番吧！这里是编程网网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
